Peak detection circuit integrated on CMOS single chip
An oxide semiconductor, peak detection circuit technology, applied in single semiconductor device testing, semiconductor/solid-state device testing/measurement, AC/pulse peak measurement, etc., can solve problems such as parasitic parameters, leakage, complex circuit structure, etc., to simplify requirements, reducing volume power consumption, and the effect of high resolution
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[0033] The present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the described embodiments are only intended to facilitate the understanding of the present invention, rather than limiting it in any way.
[0034] Specific circuit such as figure 1 As shown in the overall block diagram of the peak detection circuit, the circuit is divided into three parts: peak point finding circuit 1, peak point discharge circuit 2 and digital logic 3, of which:
[0035] One, select the concrete form of peak point finding circuit 1 to comprise: integrator 11, low-pass filter 12, first comparator 13, flip-flop D, wherein:
[0036] Integrator 11, the input sinusoidal signal A passes through the integrator 11, and is divided into two ways to output the integrated signal B; the specific form that the integrator 11 can adopt is as follows Figure 5 Shown: including the first resistor Rf, capacitor C, resistor R, resistor Rp, and th...
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